Funding for this research was provided by:
MRC Network of Hubs for Trials Methodology Research (MR/ L004933/1- N64)
Received: 23 August 2017
Accepted: 17 August 2018
First Online: 10 September 2018
Ethics approval and consent to participate
: The study was approved by Research Ethics Committee 3 at the University of Manchester (study title is Bower: Studies Within a Trial and Embedded Trials: current barriers and facilitators to implementation in funders and clinical trials units (15213)).
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.